https://www.fairus.org/issue/illegal-immigration/how-many-il...
>that somehow necessitates things like building a giant border wall
Do you want to tear down the existing walls? San Diego's seems like a success: https://www.youtube.com/watch?v=sxhhjfiSy2Y
Walls are relatively cheap, dumb tech. A wall is potentially an investment: https://cis.org/Can-Border-Wall-Pay-Itself
>and enabling ICE, etc
So you don't want illegal immigrants to be removed? I don't understand.